The Reuse Rate Of Printing And Dyeing Wastewater Is 30%.

"Do you know how much water you need to produce a cotton T-shirt every day?" in September 25th afternoon, a seminar on printing and dyeing sewage sludge treatment technology innovation and application held by District Science and Technology Bureau attracted nearly more than 60 operators from Binhai, Qian Qing and other printing and dyeing enterprises to listen.

"2.9 tons, of which the printing and dyeing process takes up a major part."

Professor Shang Songmin, a professor at Hong Kong Polytech University, has been engaged in the research of water footprint measurement in printing and dyeing projects in recent years. His answer surprised the entrepreneurs of Taiwan.

Shang Songmin said that under the increasingly severe environmental pressure, the water cost faced by printing and dyeing enterprises will be higher and higher. Regardless of the economic or social benefits, the printing and dyeing enterprises must carefully calculate the "running accounts".

Water accounts for nearly 10% of the total cost of printing and dyeing.

Printing and dyeing enterprise related research report 2014-2018 years sofa dual use mat Market investment opportunity and enterprise IPO listing environment comprehensive evaluation report

In September 2014, 2014-2018 years of investment opportunities in the sofa and color weaving Market and the comprehensive evaluation of the IPO listing environment of the enterprises were reported in 2014-2018 years. The investment opportunities of the polyester and rotten cloth market and the comprehensive evaluation of the IPO listing environment were reported for 2014-2018 years. The market survey and development prospect analysis of the Chinese ribbon industry in the past 2014-2018 years showed that 123 of the printing and dyeing wastewater was produced at the cost of at least 2.5 yuan per ton of wastewater.

According to the current discharge standard, the sewage charge per ton of wastewater is more than 3.5 yuan.

This is a "flow account" calculated by Mr. Kim, the head of a printing and dyeing enterprise in the Binhai Industrial Area.

"If the total cost of production is calculated, the share of water cost will be larger and larger, almost 10%, except dye and manual labor."

Mr. Kim said.

Mr. Kim's company is a cotton and polyester fabric mixed printing and dyeing processing enterprise, with a certain degree of representativeness.

"With the need of environmental improvement, the requirement for wastewater treatment is constantly improving."

The leaders of the printing and dyeing enterprises agreed that the high water cost has become an insurmountable constraint for Keqiao printing and dyeing enterprises.

The dyeing wastewater was treated by biochemical treatment, and the COD decreased from several thousand mg/L to about 200mg/L.

After a series of ultrafiltration and reverse osmosis treatment, the treated water is basically the same as tap water.

This is the reuse of waste water that Keqiao printing and dyeing enterprises are trying.

Let sewage turn waste into treasure.

This is in the Coastal Industrial Zone Hua Yue printing and dyeing Co., Ltd. has been vividly demonstrated.

The company has invested more than 2000 yuan in the wastewater treatment project, and has introduced a large number of advanced wastewater and waste gas treatment equipment.

"After treatment, the water is better and cleaner than the tap water.

After a series of technical treatment, the reuse rate of wastewater exceeded 60%. "

The company staff said.

"Improving the recycling efficiency of waste water has become an effective way for energy saving and emission reduction in printing and dyeing enterprises in our region."

According to the relevant person in charge of the Environmental Protection Bureau, the current printing and dyeing enterprises in Keqiao are willing to invest in the reuse of waste water, and the results are good. The waste water reuse rate of enterprises is basically maintained at over 30%.

As long as he saw the lectures and docking activities related to printing and dyeing wastewater treatment, Mr. Kim, who spent more than 20 years with dyeing and printing, was always the first time to learn from it.

Mr. Kim said bluntly that the cost of water for printing and dyeing enterprises, "Alexander" ah.

What is the footprint of water in the printing and dyeing production process? Is the water consumption in every process normal or wasteful? As a manager of printing and dyeing enterprises, do you know?

Currently some international

For example, Martha stores in Britain have begun to require companies to calculate water footprint.

It is understood that at present, our district "BELLE Heng" and other 10 enterprises have begun to manage water resources by way of water quota.

Not long ago, the 10 companies also applied for provincial industrial water-saving enterprises, and invited experts to do water balance test.

In fact, the most fundamental way out for printing and dyeing enterprises is to increase the added value by breaking the "high" water cost.

In an interview with reporters, Shang Songmin said that from the current industry water consumption situation, pharmaceutical and dyestuff industry water costs are even higher.

But why are they not complaining, mainly high value-added water that can be digested?

"Rising water cost is actually a driving force for more printing and dyeing enterprises to pform."

Shang Songmin said.